/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2008-2011, Salzburg Research. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * - Neither the name of the LMF library client Project nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Contributor(s):
 * Stephanie Stroka
 *
 * File Info:
 * User: Stephanie Stroka
 * Date: 2011/08/19
 * Time: 18:04
 *
 * Project: lmflib
 */

package kiwi.config;

import kiwi.config.api.ConfigurationService;
import kiwi.facading.model.resources.KiWiAnonResource;
import kiwi.facading.model.resources.KiWiUriResource;
import org.apache.commons.configuration.Configuration;
import org.apache.commons.configuration.ConfigurationException;
import org.apache.commons.configuration.MapConfiguration;
import org.apache.commons.configuration.PropertiesConfiguration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.net.*;
import java.util.HashMap;

/**
 * @author sstroka
 * User: sstroka
 * Date: 15.08.2011
 * Time: 15:46:44
 */
public class ConfigurationServiceImpl implements ConfigurationService {

    private Configuration config;

    private Logger log =  LoggerFactory.getLogger(this.getClass());

    public ConfigurationServiceImpl() {
        config = initConfiguration();
    }

    private Configuration initConfiguration() {

        log.info("LMF Configuration Service: looking up bootstrap configuration...");

        log.debug("configuration impl path: {}", ClassLoader.getSystemClassLoader().getResource("."));

        Configuration config = null;

        try {
            config = new PropertiesConfiguration("default-config.properties");

        } catch (ConfigurationException e) {
            log.error("Error while trying to load the default configuration: {}", e.getMessage());

            config = new MapConfiguration(new HashMap());
        }

        return config;
    }

    public HttpURLConnection getTriplestoreBaseConnection() {
        try {
            URL url = new URL(config.getString("url"));
            HttpURLConnection con = (HttpURLConnection) url.openConnection(); 
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    @Override
    public HttpURLConnection getSPARQLEndpointConnection() {
        try {
            URL url = new URL(config.getString("url") + "sparql/select");
            HttpURLConnection con = (HttpURLConnection) url.openConnection();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    public URI getResourceConnection(KiWiUriResource resource) {

        if(resource == null) {
            return null;
        }
        try {
            String lmf = config.getString("url");

            URI uri;
            if(resource.getUri().startsWith(lmf)) {
                uri = new URI(resource.getUri());
            } else {
                uri = new URI(lmf + "resource?uri=" + resource);
            }

            return uri;
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }
        return null;
    }

    public URI getResourceConnection(KiWiAnonResource resource) {
        try {
            String lmf = config.getString("url");

            URI uri = new URI(lmf + "resource/" + resource.getAnonId());

            return uri;
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }
        return null;
    }

    public String getLMFUrl() {
        String lmf_uri = config.getString("url");
        if(lmf_uri != null) {
            if(!lmf_uri.endsWith("/"));
            lmf_uri = lmf_uri + "/";
        }
        return lmf_uri;
    }

    public String getBaseUri() {
        String base_uri = config.getString("base");
        if(base_uri != null) {
            if(!base_uri.endsWith("/"));
            base_uri = base_uri + "/";
        }
        return base_uri;
    }
}
